Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261206AbVAWOlD (ORCPT ); Sun, 23 Jan 2005 09:41:03 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261308AbVAWOlD (ORCPT ); Sun, 23 Jan 2005 09:41:03 -0500 Received: from out002pub.verizon.net ([206.46.170.141]:22481 "EHLO out002.verizon.net") by vger.kernel.org with ESMTP id S261206AbVAWOk5 (ORCPT ); Sun, 23 Jan 2005 09:40:57 -0500 From: Gene Heskett Reply-To: gene.heskett@verizon.net Organization: None, usuallly detectable by casual observers To: linux-kernel@vger.kernel.org Subject: Re: [patch] Real-Time Preemption, -RT-2.6.11-rc2-V0.7.36-00 Date: Sun, 23 Jan 2005 09:40:56 -0500 User-Agent: KMail/1.7 Cc: Ingo Molnar , andyliu References: <20041122005411.GA19363@elte.hu> <20050123113111.GA11965@elte.hu> In-Reply-To: <20050123113111.GA11965@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200501230940.56420.gene.heskett@verizon.net> X-Authentication-Info: Submitted using SMTP AUTH at out002.verizon.net from [151.205.47.137] at Sun, 23 Jan 2005 08:40:57 -0600 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1771 Lines: 44 On Sunday 23 January 2005 06:31, Ingo Molnar wrote: >* andyliu wrote: >> hi , ingo >> >> i am trying to understand your patch,but the patch file is so long >> and complex. i am wondering is there some documents about your >> patch? >> >> :) > >well, it mainly offers the PREEMPT_RT feature, which is a 'no >compromises' variant of kernel preemption: virtually everything >(including normal spinlocked sections) is preemptable, with the goal > of providing hard-realtime category ~10-20 usecs maximum scheduling > latency guarantees on a typical PC (or embedded platform). Those > long and complex changes are almost all needed to achieve this > goal. > >this tree is mainly an experiment to see what it takes to achieve > that latency goal, and to see how much of that can go upstream > (without having to decide whether upstream wants to have the > PREEMPT_RT feature or not). (A couple of dozen patches were already > split out of this patch and are in the current upstream kernel - > they already made a latency difference for the 2.6.10 kernel.) > > Ingo Hijacking the thread here Ingo, but did you see my build failure message of yesterday? -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) 99.32% setiathome rank, not too shabby for a WV hillbilly Yahoo.com attorneys please note, additions to this message by Gene Heskett are: Copyright 2005 by Maurice Eugene Heskett, all rights reserved. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/